{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["RNA", "cell type", "cell line", "DNA", "protein"], "input": "The HTLV-I LTR contains three conserved regulatory elements known as 21 base pair repeats which are required for stimulation of gene expression by the transactivator protein tax ."}
{"RNA": [], "cell type": [], "cell line": [], "DNA": ["HTLV-I LTR", "regulatory elements", "21 base pair repeats"], "protein": ["transactivator protein", "tax"]}